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Finding the Fourth Proportional to 377,700.09, 521,228.12 and 207,934.22

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Solution

The fourth proportional to 377,700.09, 521,228.12 and 207,934.22 is: 286,950.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,700.09 : 521,228.12 = 207,934.22 : x
  2. Step 2: Convert to fraction form
    377,700.09/521,228.12 = 207,934.22/x
  3. Step 3: Cross multiply
    377,700.09x = 521,228.12 × 207,934.22
  4. Step 4: Simplify right side
    377,700.09x = 108,381,158,928.46
  5. Step 5: Solve for x
    x = 108,381,158,928.46/377,700.09
  6. Step 6: Final answer
    x = 286,950.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.